Apparatus for receiving submarine signals



March 24, 1931.

w. KUNZE 1,797,351

APPARATUS FOR RECEIVING SUBMARINE SIGNALS Filed Feb. 24, 1930 4 Sheets-Sheet 1 5% 7 I II H- 22 :2 h i 3 76 1 20 A 20 l5 /9 2k 2/ 76 16 j c c I? J J\ fizz/enter 1% g. 1

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APPARATUS FOR RECEIVING SUBMARINE SIGNALS Filed Feb. 24, 1930 4 Sheets-Shqet 5 [5 3 [flue/2201' Willy Kai/Z3 March 24, 1931. w, KUNZE 1,797,351

APPARATUS FOR RECEIVING SUBMARINE SIGNALS Filed Feb. 24, 1930 4 Sheets-Sheet 4 Patented Mar. 24, 1931 UITED I STATES PATENT OFFICE WILLY KUNZE, OF BBEMEN, GERMANY, ASSIGNOR TO SUBMARINE SIGNAL COMPANY, 013 BOSTON, MASSACHUSETTS, A CORPORATION OF MAINE APPARATUS FOR RECEIVING SUBMARINE SIGNALS Application filed February 24, 1930, Serial No. 430,931, and in Germany August 3, 1929.

The present invention relates to submarine signaling apparatus, and particularly to apparatus and methods of installing the same in a vessel where it is desired tobe able to use a plurality of units and to have them outside the vessel only when they are being used for signalin purposes.

It has een recognized in the art of submarine signaling that there is a distinct advantage in having the submarine signaling apparatus outside of the vessel. Not only is it possible in this manner to have the apparatus placed in quiet water, but it is also possible to'avoid the sound shadow of the ship itself and to have the apparatus in a medium which is free from air bubbles due to the motion of the vessel through the water.

In the methods of installation and construction which avail themselves of this advantage of placing the signaling equipment outside of the vessel, it has been customary to use a piston extending through a well in the bottom of the vessel, through whichjthe sound transmitting or receiving apparatus may be lowered into the water. Such an installation has proved to be entirely satisfactory and useful. However, this construction demands that each individual unit for sound reception or transmission be put through a separate hole or well in the vessel when a number of horizontally dispos'ed units are to be used. Not only is such a construction expensive, but also each opening must be made water-tight and the structure of the vessel must be reinforced to overcome the weakening caused by cutting away a part of the skin of the vessel.

In the present invention the applicant has overcome these difficulties by providing sound signaling apparatus which can be lowered through a well or shaft in a vessel and after it is placed in signaling positlon outslde of the vessel,'extended or unfolded in such a manner that the signaling units are arranged in the desired horizontal position.

The present invention is more fully described in connection with the drawings, in

which 7 V Figure 1 shows a vertical elevatlon partly through the structure of the apparatus,

the space within the cylinder 2 and is sup-- ported by a piston rod 4, which carries a collar 50 on which is mounted the lower rod 15. This rod carries at its lower end a collar 28, in which are mounted the bearings 17 on which the arms 16, shown in Figure 1, are pivoted. The arms 16 carry within their bodies the submarine signaling units 51, 51, 51 etc. Towards the outer end of the arm 16 there is pivoted the forked link 21, linked to the collar 19,- sitting freely on the rod 15.

The collar 19 is supported by means of the stays 20, which are bolted to the collar 18,

sitting freely on the rod 15. The collar 18 is worked freely up and down by means of the screw jacks 22, threading through the collar.

These screw jacks 22 are driven by the gears 23 and 24 through the motion ofthe rod 25 passingwithin the piston 4 to the upper end of the apparatus. A gear 27 is provided at the upper end of the rod 25, through which the system may be set in motion. The collar 18, moving upward on the screw jacks 22, folds the arms 16 into a vertical position.

The piston 4 may be raised and lowered by means of the plate 5 which catches beneath the collar 52 rigidly attached to the-piston 4.

collar 19 which is supported by the rods 20.

In Figures 5 and 6, a modification of the apparatus is shown, in which the arm 62, carrying the sound signaling units 67, 67, 67 may be maintained in a vertical position by 5 means of a hinged joint, indicated at 68, by which the arm 62 is joined to the piston 63, which is held in a fixed position by the piece 66 mounted on the skin 61 of the vessel. The unit may be drawn into the vessel by raising the piston 4 in the cylinder 5, the arm 63 being connected to the piston 4.. The advantage of this particular construction is that when the vessel rolls from side to side, theunit 62 will tend to remain in a vertical posi- .tion and not swing through the water. 7

In the operation of the apparatus described in Figures 1 to 4 inclusive, the arms are in a vertical folded position when the unit is inside the vessel. When it is desired to use the apparatus for signaling purposes, the piston 15 is lowered through the opening by rotating the gear 10. -When the unit has been extended to its normal signaling position, the gear 27 is rotated and the arms are thereby lowered from a vertical to a horizontal position.

What is claimed is:

1. A sound signaling installation adapted particularly for submarine signaling com- 30 prising a well located in a vessel, a piston movable in said well, sound signaling means, means mounting said signaling means at the end of the piston, means for raising or lowering said piston and means for changing the 5 position of the signaling means from, a

horizontalto a vertical position after said signalin means is lowered.

2. sound signaling installation adapted particularly for submarine signaling comprising a plurality of arms having sound signaling means located therein, said arms normally positioned horizontally, means for folding said arms into a vertical position, a well, and means for drawing said arms in said vertical position into said well.

3; A sound'signaling installation adapted particularly for submarine signaling comprising a plurality of arms having sound slgnaling means located therein, a piston to which said arms are hinged, means for folding said arms to said piston and means for raising or lowering said piston.

- 4. A sound signaling installation adapted particularly for submarine signaling comprising a plurality of arms having sound signaling means located therein, a piston on which said arms are hinged, a collar fitting freely on said piston and having hinged links connecting to said arms, a screw on which said collar rides, means for turning said screw whereby said arms may be folded and means for raising or lowering said piston.

In testimony whereof I afiix my signature.

6; DR. Y KUNZE. 

